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-   -   Has anyone tried using the QTech electric exhaust cutout? (https://www.rx8club.com/series-i-tech-garage-22/has-anyone-tried-using-qtech-electric-exhaust-cutout-184799/)

KRMRX8 10-18-2009 10:44 PM

Has anyone tried using the QTech electric exhaust cutout?
 
After looking at the underside of this newer car, 40th anniversary edition, I am wondering if anyone has had success installing an electric cutout for the exhaust anywhere positioned after the cat. A search yielded nothing.
Thanks!

dozer 10-18-2009 10:57 PM

yes. i think so..im drunk

KRMRX8 10-24-2009 12:58 PM

No one has used the Q Tech electric valve cut out on their exhaust?

kersh4w 10-24-2009 01:00 PM

someone had the badlandz electric cutout.

he dyno'd 10whp with the cutout open. so its roughly equivilant to a catless midpipe. downside is that it dumps straight after the exhaust manifold, so it sounds horrible. the upside is that you can turn it off, unlike a midpipe.

8upbad 10-24-2009 02:02 PM

Ive never heard of this. Is it for sound or less restriction? I'm confused.....and getting drunk =P

8upbad 10-24-2009 02:04 PM

a catless midpipe is good for 10 hp?!? Idk, I have read that intake and full exhaust only gets you about 10 hp..... or less.

mysql101 10-24-2009 02:29 PM

people don't realize how raspy and horrid the rotary sounds at low and mid rpms without the exhaust system. Cutout without a turbo doesn't sound useful especially since they end up leaking.

KRMRX8 10-25-2009 08:26 AM


Originally Posted by 8upbad (Post 3293092)
Ive never heard of this. Is it for sound or less restriction? I'm confused.....and getting drunk =P

Thanks for the info. The electric QTech exhaust cutout, essentially a Y pipe with a butterfly valve that opens from an electric motor, to by pass the rest of the exhaust, has been used on thousands of cars and I have never heard of it leaking. It uses top end materials,
I agree that it would have to be mounted after the cat, and that would likley only allow maybe 5 AWHP, if the oem muffler inhibits that much HP/torque (guessing on the values there) An un-muffled rotary is a terribly loud but wicked sounding screamer. But considering the price of the Qtech cut out , in any size 2.5" - 3+",
I thought it would be a deal, to use on those occasions where the extra freed up HP would be useful. But since no one here has ever used it, there must be some drawbacks.

kersh4w 10-25-2009 07:59 PM

5 awhp?

since when did you get all wheel drive in your rx8?

if you are going to get a cut out, put it before the cat, and open it when you really want to scream.

after the cat you'll get 3whp, maybe.

10whp is for a 3" catless midpipe alone. add 3whp for a 3" catback and maybe another 3whp for an intake. still not a lot of whp for the money.

trustbuddy 10-26-2009 07:02 PM


Originally Posted by kersh4w (Post 3293019)
someone had the badlandz electric cutout.

he dyno'd 10whp with the cutout open. so its roughly equivilant to a catless midpipe. downside is that it dumps straight after the exhaust manifold, so it sounds horrible. the upside is that you can turn it off, unlike a midpipe.

that would be me.
https://www.rx8club.com/rx-8-parts-sale-wanted-44/badlanzhpe-electric-cutout-10hp-176484/

oh, and it's still up for sale...:mdrmed:

Juice 10-26-2009 08:21 PM

Yeah, absolutely no point in putting it after the catalytic converter. All you are going to do is make noise. Put it before the cat and at least you get a little bit of power with the noise.


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